Means for applying electric motors to winding-engines



A. PALMROS.

MEANS FOR APPLYING ELECTRIC MOTORS T0 WINDING ENGINES. APPLICAIION FILED IULY5. I9I9.

1,342,757. Patented June 8, 1920.

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I Z @mnder Jbimroa A. PALMROS. MEANS FOR APPLYING ELECTRIC MOTORS T0 WINDING ENGINES.

APPUCA'IION FILED JULYS, 1919.

Patented J une 8, 1920.

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UNITED STATES PATENT OFFICE. I

ALEXANDER PALMROS, 0F SYRACUSE, NEW YCRK, ASEIGNOR TO THE PNEUMELEC- TRIO MACHINE COMPANY, OF SYRACUSE, NEW YORK, A CORPORATION OF NEW YORK.

MEANS FOR APPLYING ELECTRIC MOTORS TO WINDING-ENGINES.

Application filed July 5,

T 0 all whom it may concern Be it known that I, ALEXANDER PALMROS, a citizen of the United States, residing at Syracuse, in the county of Onondaga and State of New York, have invented certain new and useful Improvements in Means for Applying Electric Motors to Finding-Engines, of which the following is a specification.

The present invention has for its object to provide means whereby an electric motor may be readily appliedto a winding hoist, and especially to a portable hoist such, for instance, as is used around mines and similar localities.

Hoists of this kind have heretofore been built upon either wheeled trucks or skid bases, and have had electric motors incorporated in the original organization of the parts in making up a complete self-driven hoist. But it sometimes becomes desirable to bring together an existing hoist with an electric motor, or provide a light portable hoist that can be applied to, and so made' to utilize, an electric motor already on hand, or salvaged from some discarded apparatus, and to have this assembly of the two members of the organization made conveniently possible with such meager facilities as are usually available at the mine, or other like place of service.

The present invention supplies the need above outlined by providing a standard having means whereby it may be attached to the base of the winding engine, adjacent the driving shaft thereof, and so constructed that it will receive the mounting base of the electric motor and present the driving connection of the latter into position to cooperate with the drive shaft of the hoist. The supporting standard is preferably in the form of a box or housing, with an open side upon which it receives and which is closed by the attachment of the base plate or mounting of the motor; said standard having its rear wall perforated to admit within it the end of the driving shaft of the winding engine, said shaft end being equipped with a crank arm having a radially offset opening, and a motor being provided with a reduction gear having upon its driven wheel a side journal coaxial with the hoist shaft, with a-recessed face to receive a wheel on said shaft, and with a crank pin entering Specification of Letters Patent.

Patented June 8, 1920.

1919. Serial No. 308,743.

the opening in said wheel, the crank arm pin being keyed to the shaft of the hoist and being slotted beyond its bearing thereon to render it compressible through means of a. transverse bolt which is employed for clamping it in position. The driving connections are all securely housed in the boxlike standard, and thus guarded against injury from external influences or liability to cause in ury to an operative who uses the apparatus.

The invention will be fully understood upon reference to the accompanying drawing, in which- Figures 1, 2, and 3 represent a side elevation, an end view, and a top plan view of a: hoisting machine in which the subjectmatter of the present invention is embodied; Fig. 3 being partly in section to disclose the construction and relation of parts in which the subject-matter of the invention immediately lies; and

Fig. 4 is a detail view.

1 represents a supporting base, in this instance in the form of a skid or drag, perforated at 1 to receive a draft connection, 2 is a winding drum having a large driven gear wheel 3; and 4 is a drive shaft carrying the loose transmission pinion 5, which meshes with gear wheel 3 and has its hub 5 constructed to coact with the hand operated clutch 6 for establishing and interrupting driving connection between shaft l and drum 2 at will. These parts may be of any approved known construction.

'7 represents an electric motor which is carried by a base-plate 8, and which has a reduction gear consisting of pinion 9 on the motor shaft and a driven gear wheel 10 which is journaled through means of a lateral spindle 11. in the journal bearing 8 of the base 8. The driving gear wheel 10 of the motor is recessed on its face opposite its spindle 11, and carries a crank pin l0 projecting from the bottom face of its recess and through which it transmits its drive, the present invention having for its purpose the provision of means whereby the motor 7, with a driving gear preferably such as the gear 9, 10, 10 and 11, may be brought into driving relation with the shaft 4. This is accomplished by providing a standard 12, preferably in the form of a box or housing, with its rear wall 12 perforated to receive the shaft 4 within it, and with a deep surrounding flange 12 to which the base 8 of the motor may be secured, as, for instance, by tap-screws 13, in position to complete the housing bythe base 8, and present the crank pin l in position to drive the shaft 1; and to establish such drive crank arm 14: is provided, which may be fixed to the shaft 1, as, for instance, through the medium of the keyed bearing is, slot 14 and clamping bolt 14, and which has an opening 14 radially offset from its keyed bearing 14: in position to receive the crank 4 pin of the motor gear wheel 10.

The standard 12 will be bolted or otherwise secured to the supporting base 1 and will, by its construction, afford a substantial, rigid standard for the mounting of the motor and presentation of the latter in driving relation to the shaft 4;.

I claim:

1. In combination with a winding hoist having a base, a driving shaft and a standard rising from the base and constructed to receive the driving shaft thereof, a motor having a base-plate attached to said standard and thereby supported from the base, and gearing members carried, respectively, by the driving shaft of the hoist and by the motor base-plate, and brought into assembly by the application of the motor base-plate to the standard.

2. In combination with a winding hoist having a driving shaft, a standard mounted upon said hoist and constructed to receive the driving shaft thereof, a motor having a base-plate through which it is attached to said standard, and gearing members carried, respectively, by the driving shaft of the hoist and by the motor base-plate, adapted for assembly by the application of the motor base-plate to the standard; said standard being in the form of a box or housing with a I perforated rear wall through which the hoist shaft projects, and with an open front side adapted to be closed by the motor base-plate.

3. In combination with a winding hoist having a driving shaft, a standard mounted upon said hoist and constructed to receive the driving shaft thereof, a motor having a base-plate through which it is attached to said standard, and gearing members carried, respectively, by the driving shaft of the hoist and by the motor base-plate, adapted for assembly by the application of the motor base-plate to the standard; said gearing members including a crank arm mounted on the hoist shaft'and a crank pin carried by the motor gearing.

4:. In combination with a winding hoist having a driving shaft, a standard mounted upon said hoist and constructed to receive the driving shaft thereof, a motor having a base-plate through which it is attached to said standard, and gearing members carried, respectively, by the driving shaft of the hoist and by the motor base-plate, adapted for assembly by the application of the motor base-plate to the standard; said gearing members comprising a crank arm mounted on the hoist shaft with a radially offset opening therein and a motor gear-wheel having a lateral supporting spindle, a recessed face receiving the crank arm, and a crank pin projecting from the bottom face of its recess and entering the opening in the crank arm.

5. In a motor driven hoist, the combination of a supporting base, hoisting mechanism mounted on said base and having a driving shaft, a supporting standard mounted on said base, and an electric motor mounted on said standard; the standard comprising a box having side walls and a perforated rear wall through which the hoist shaft enters the box; said motor having a base-plate attached to the said walls of said standard and completing the closure of the standard;

said hoist shaft carrying a crank arm within the boX of the standard; and said motor base-plate carrying a reduction gear within the box of the standard and including a gear wheel having a lateral supporting spindle concentric with the hoist shaft and with a crank pin on said gear wheel which coacts with said crank ar Signed at Syracuse, New York, this 9th day of June, 1919.

ALEXANDER PALMROS. 

